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sudoswap.lib.sol
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import {ERC20} from "solmate/tokens/ERC20.sol";
import {ICurve} from "../bonding-curves/ICurve.sol";
import {ILSSVMPairFactoryLike} from "../ILSSVMPairFactoryLike.sol";
library LSSVMPairCloner {
/**
* @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
*
* This function uses the create opcode, which should never revert.
*
* During the delegate call, extra data is copied into the calldata which can then be
* accessed by the implementation contract.
*/
function cloneETHPair(
address implementation,
ILSSVMPairFactoryLike factory,
ICurve bondingCurve,
IERC721 nft,
uint8 poolType
) internal returns (address instance) {
assembly {
let ptr := mload(0x40)
// -------------------------------------------------------------------------------------------------------------
// CREATION (9 bytes)
// -------------------------------------------------------------------------------------------------------------
// creation size = 09
// runtime size = 72
// 60 runtime | PUSH1 runtime (r) | r | –
// 3d | RETURNDATASIZE | 0 r | –
// 81 | DUP2 | r 0 r | –
// 60 creation | PUSH1 creation (c) | c r 0 r | –
// 3d | RETURNDATASIZE | 0 c r 0 r | –
// 39 | CODECOPY | 0 r | [0-runSize): runtime code
// f3 | RETURN | | [0-runSize): runtime code
// -------------------------------------------------------------------------------------------------------------
// RUNTIME (53 bytes of code + 61 bytes of extra data = 114 bytes)
// -------------------------------------------------------------------------------------------------------------
// extra data size = 3d
// 3d | RETURNDATASIZE | 0 | –
// 3d | RETURNDATASIZE | 0 0 | –
// 3d | RETURNDATASIZE | 0 0 0 | –
// 3d | RETURNDATASIZE | 0 0 0 0 | –
// 36 | CALLDATASIZE | cds 0 0 0 0 | –
// 3d | RETURNDATASIZE | 0 cds 0 0 0 0 | –
// 3d | RETURNDATASIZE | 0 0 cds 0 0 0 0 | –
// 37 | CALLDATACOPY | 0 0 0 0 | [0, cds) = calldata
// 60 extra | PUSH1 extra | extra 0 0 0 0 | [0, cds) = calldata
// 60 0x35 | PUSH1 0x35 | 0x35 extra 0 0 0 0 | [0, cds) = calldata // 0x35 (53) is runtime size - data
// 36 | CALLDATASIZE | cds 0x35 extra 0 0 0 0 | [0, cds) = calldata
// 39 | CODECOPY | 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 36 | CALLDATASIZE | cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 60 extra | PUSH1 extra | extra cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 01 | ADD | cds+extra 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 3d | RETURNDATASIZE | 0 cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 73 addr | PUSH20 0x123… | addr 0 cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
mstore(
ptr,
hex"60_72_3d_81_60_09_3d_39_f3_3d_3d_3d_3d_36_3d_3d_37_60_3d_60_35_36_39_36_60_3d_01_3d_73_00_00_00"
)
mstore(add(ptr, 0x1d), shl(0x60, implementation))
// 5a | GAS | gas addr 0 cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// f4 | DELEGATECALL | success 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 3d | RETURNDATASIZE | rds success 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 3d | RETURNDATASIZE | rds rds success 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 93 | SWAP4 | 0 rds success 0 rds | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 80 | DUP1 | 0 0 rds success 0 rds | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 3e | RETURNDATACOPY | success 0 rds | [0, rds) = return data (there might be some irrelevant leftovers in memory [rds, cds+0x37) when rds < cds+0x37)
// 60 0x33 | PUSH1 0x33 | 0x33 sucess 0 rds | [0, rds) = return data
// 57 | JUMPI | 0 rds | [0, rds) = return data
// fd | REVERT | – | [0, rds) = return data
// 5b | JUMPDEST | 0 rds | [0, rds) = return data
// f3 | RETURN | – | [0, rds) = return data
mstore(
add(ptr, 0x31),
hex"5a_f4_3d_3d_93_80_3e_60_33_57_fd_5b_f3_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00"
)
// -------------------------------------------------------------------------------------------------------------
// EXTRA DATA (61 bytes)
// -------------------------------------------------------------------------------------------------------------
mstore(add(ptr, 0x3e), shl(0x60, factory))
mstore(add(ptr, 0x52), shl(0x60, bondingCurve))
mstore(add(ptr, 0x66), shl(0x60, nft))
mstore8(add(ptr, 0x7a), poolType)
instance := create(0, ptr, 0x7b)
}
}
/**
* @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
*
* This function uses the create opcode, which should never revert.
*
* During the delegate call, extra data is copied into the calldata which can then be
* accessed by the implementation contract.
*/
function cloneERC20Pair(
address implementation,
ILSSVMPairFactoryLike factory,
ICurve bondingCurve,
IERC721 nft,
uint8 poolType,
ERC20 token
) internal returns (address instance) {
assembly {
let ptr := mload(0x40)
// -------------------------------------------------------------------------------------------------------------
// CREATION (9 bytes)
// -------------------------------------------------------------------------------------------------------------
// creation size = 09
// runtime size = 86
// 60 runtime | PUSH1 runtime (r) | r | –
// 3d | RETURNDATASIZE | 0 r | –
// 81 | DUP2 | r 0 r | –
// 60 creation | PUSH1 creation (c) | c r 0 r | –
// 3d | RETURNDATASIZE | 0 c r 0 r | –
// 39 | CODECOPY | 0 r | [0-runSize): runtime code
// f3 | RETURN | | [0-runSize): runtime code
// -------------------------------------------------------------------------------------------------------------
// RUNTIME (53 bytes of code + 81 bytes of extra data = 134 bytes)
// -------------------------------------------------------------------------------------------------------------
// extra data size = 51
// 3d | RETURNDATASIZE | 0 | –
// 3d | RETURNDATASIZE | 0 0 | –
// 3d | RETURNDATASIZE | 0 0 0 | –
// 3d | RETURNDATASIZE | 0 0 0 0 | –
// 36 | CALLDATASIZE | cds 0 0 0 0 | –
// 3d | RETURNDATASIZE | 0 cds 0 0 0 0 | –
// 3d | RETURNDATASIZE | 0 0 cds 0 0 0 0 | –
// 37 | CALLDATACOPY | 0 0 0 0 | [0, cds) = calldata
// 60 extra | PUSH1 extra | extra 0 0 0 0 | [0, cds) = calldata
// 60 0x35 | PUSH1 0x35 | 0x35 extra 0 0 0 0 | [0, cds) = calldata // 0x35 (53) is runtime size - data
// 36 | CALLDATASIZE | cds 0x35 extra 0 0 0 0 | [0, cds) = calldata
// 39 | CODECOPY | 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 36 | CALLDATASIZE | cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 60 extra | PUSH1 extra | extra cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 01 | ADD | cds+extra 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 3d | RETURNDATASIZE | 0 cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 73 addr | PUSH20 0x123… | addr 0 cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
mstore(
ptr,
hex"60_86_3d_81_60_09_3d_39_f3_3d_3d_3d_3d_36_3d_3d_37_60_51_60_35_36_39_36_60_51_01_3d_73_00_00_00"
)
mstore(add(ptr, 0x1d), shl(0x60, implementation))
// 5a | GAS | gas addr 0 cds 0 0 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// f4 | DELEGATECALL | success 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 3d | RETURNDATASIZE | rds success 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 3d | RETURNDATASIZE | rds rds success 0 0 | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 93 | SWAP4 | 0 rds success 0 rds | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 80 | DUP1 | 0 0 rds success 0 rds | [0, cds) = calldata, [cds, cds+0x35) = extraData
// 3e | RETURNDATACOPY | success 0 rds | [0, rds) = return data (there might be some irrelevant leftovers in memory [rds, cds+0x37) when rds < cds+0x37)
// 60 0x33 | PUSH1 0x33 | 0x33 sucess 0 rds | [0, rds) = return data
// 57 | JUMPI | 0 rds | [0, rds) = return data
// fd | REVERT | – | [0, rds) = return data
// 5b | JUMPDEST | 0 rds | [0, rds) = return data
// f3 | RETURN | – | [0, rds) = return data
mstore(
add(ptr, 0x31),
hex"5a_f4_3d_3d_93_80_3e_60_33_57_fd_5b_f3_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00"
)
// -------------------------------------------------------------------------------------------------------------
// EXTRA DATA (81 bytes)
// -------------------------------------------------------------------------------------------------------------
mstore(add(ptr, 0x3e), shl(0x60, factory))
mstore(add(ptr, 0x52), shl(0x60, bondingCurve))
mstore(add(ptr, 0x66), shl(0x60, nft))
mstore8(add(ptr, 0x7a), poolType)
mstore(add(ptr, 0x7b), shl(0x60, token))
instance := create(0, ptr, 0x8f)
}
}
/**
* @notice Checks if a contract is a clone of a LSSVMPairETH.
* @dev Only checks the runtime bytecode, does not check the extra data.
* @param factory the factory that deployed the clone
* @param implementation the LSSVMPairETH implementation contract
* @param query the contract to check
* @return result True if the contract is a clone, false otherwise
*/
function isETHPairClone(
address factory,
address implementation,
address query
) internal view returns (bool result) {
// solhint-disable-next-line no-inline-assembly
assembly {
let ptr := mload(0x40)
mstore(
ptr,
hex"3d_3d_3d_3d_36_3d_3d_37_60_3d_60_35_36_39_36_60_3d_01_3d_73_00_00_00_00_00_00_00_00_00_00_00_00"
)
mstore(add(ptr, 0x14), shl(0x60, implementation))
mstore(
add(ptr, 0x28),
hex"5a_f4_3d_3d_93_80_3e_60_33_57_fd_5b_f3_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00"
)
mstore(add(ptr, 0x35), shl(0x60, factory))
// compare expected bytecode with that of the queried contract
let other := add(ptr, 0x49)
extcodecopy(query, other, 0, 0x49)
result := and(
eq(mload(ptr), mload(other)),
and(
eq(mload(add(ptr, 0x20)), mload(add(other, 0x20))),
eq(mload(add(ptr, 0x29)), mload(add(other, 0x29)))
)
)
}
// bytes memory data = abi.encodePacked(
// hex"3d_3d_3d_3d_36_3d_3d_37_60_3d_60_35_36_39_36_60_3d_01_3d_73",
// implementation,
// hex"5a_f4_3d_3d_93_80_3e_60_33_57_fd_5b_f3",
// factory);
// bytes memory queryData = address(query).code;
// return keccak256(data) == keccak256(queryData);
}
/**
* @notice Checks if a contract is a clone of a LSSVMPairERC20.
* @dev Only checks the runtime bytecode, does not check the extra data.
* @param implementation the LSSVMPairERC20 implementation contract
* @param query the contract to check
* @return result True if the contract is a clone, false otherwise
*/
function isERC20PairClone(
address factory,
address implementation,
address query
) internal view returns (bool result) {
// solhint-disable-next-line no-inline-assembly
assembly {
let ptr := mload(0x40)
mstore(
ptr,
hex"3d_3d_3d_3d_36_3d_3d_37_60_51_60_35_36_39_36_60_51_01_3d_73_00_00_00_00_00_00_00_00_00_00_00_00"
)
mstore(add(ptr, 0x14), shl(0x60, implementation))
mstore(
add(ptr, 0x28),
hex"5a_f4_3d_3d_93_80_3e_60_33_57_fd_5b_f3_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00"
)
mstore(add(ptr, 0x35), shl(0x60, factory))
// compare expected bytecode with that of the queried contract
let other := add(ptr, 0x49)
extcodecopy(query, other, 0, 0x49)
result := and(
eq(mload(ptr), mload(other)),
and(
eq(mload(add(ptr, 0x20)), mload(add(other, 0x20))),
eq(mload(add(ptr, 0x29)), mload(add(other, 0x29)))
)
)
}
}
}